Marika Hayase is a Japanese voice actress from Hokkaido Prefecture, born on November 3rd. She is affiliated with the talent agency WITH LINE. Her journey to becoming a voice actor began with a childhood love for anime, particularly Sailor Moon, which inspired her to pursue a career in the industry. Due to limited training opportunities in Hokkaido, she saved money to move to Tokyo for her education. She is a graduate of the Pro-Fit Voice Actor Training Center.

Hayase's professional career started in 2014 with roles in games and anime. Her early career saw her affiliated with the agency Link Plan before a brief period as a freelancer in late 2017. She joined her current agency, WITH LINE, in August 2018. Her voice acting portfolio includes a range of main and supporting roles in anime television series. One of her notable performances is as Yuzuki Hanyū, a homeroom teacher, in the 2021 science-fiction anime World's End Harem. Other significant anime roles include Miwa Nureba in Venus Project -CLIMAX-, Sena Hattori in Idol Memories, Lulu Watari in Death March to the Parallel World Rhapsody, and Himari Haruno in Asteroid in Love. She has also contributed her voice to various other series such as Prison School, Rewrite, and Citrus, often playing supporting characters.

Beyond anime, Hayase has lent her voice to numerous video game characters. Her game credits include Reika Kurose in Aozora Under Girls, Kotoba Hiiragi in Hachigatsu no Cinderella Nine, Haruko Asagiri in Tokimeki Idol, and Alexandra Kuri in Magia Record. She has also participated in drama CDs, radio programs, and digital content, demonstrating her versatility as a performer.

Throughout her career, Hayase has formed professional relationships and friendships within the industry. She is noted to be close friends with fellow voice actress Sawako Hata, who was her classmate at their voice acting training school, and they have worked together on projects like Venus Project. Her personal interests include drawing, taking walks, and playing the piano, a skill she developed from a young age. She also holds certifications in Kanji and secretarial skills. She is known among fans by several nicknames, including Marippe, Rika-kun, Mari-chan, and Maririn.